Cop-cone



J. O. McKEAN.

COP CONE.

APPLICATION men SEPT.22, 1920.

1,391 ,961 PatentedSept. 27, 1921.

JOHN O. MGKEAN, OF'WESTFIELD, MASSACHUSETTS, ASSIGNOR TO FOSTER.-MACHINE COMI'AN'Y, OF WESTFIELD, MASSACHUSETTS,

A CORPORATION OF MASSACHUSETTS.

COP-CONE.

Application filed September To all whom it may concern.

Be it known that I, JOHN O. MOKEAN, a citizen of the United States, andresident of Westfield, in the county of Hampden and State ofMassachusetts, have invented a new and useful Improvement in Cop-Cones,of which the following is a specification.

My invention comprises a cop cone having two different tapers asdistinguished from the cones in common use which have a single straighttaper.

My invention more particularly comprises a cop cone having a gradualtaper extending for a distance from its larger end, said gradual taperterminating at the smaller end of the cone in a steeper taper,preferably straight, although it may be slightly convex or slightlyconcave if so desired.

On a single taper cone as hereinbefore used, the extreme end of thesmaller diameter builds up somewhat larger than the tru taper. This isone of the disadvantages which it is intended to obviate by the doubletaper cone of the present invention.

Another advantage of the double taper cone is that it gives moreclearance to the cop than a single taper cone unless the single taper isvery steep. In a very steep taper cone it is impossible to get theyardage in the cop. In the double taper cone a greater mass of yarn withthe same clearance of the thread maybe wound. The double taper coneseems to have a firmer nose and is not so liable to be injured in therough usage to which it is subjected, as the nose or smaller end of thecone seems to be protected by the steep taper at the smaller end of thecone. Furthermore, in a very steep taper to allow for the proper clearance, the yarn has a tendency to come off in coils and snarls. Thisisobviated by the double taper of the cone, the yarn seeming to cling muchbetter and not to uncoil faster than required.

A practical embodiment of my invention is represented in theaccompanying drawings, in which,

Figure 1 represents my improved double cop cone when made of paper, thecone being shown in its operative relationship to its driving roll.

Fig. 2 represents a similar view a wooden double taper cone.

Fig. 3 represents in outline, the cop wound showing Specification ofLetters Patent.

Patented Sept.'27, 1921.

22, 1920. Serial N0.'411,968.

on the cone,

therefor.

F g. 4 represents a detail view showing another form of steeper taper atthe smaller end of thecone.

Fig. 5 represents a similar view, showing still another vform of steepertaper at the smaller end of the cone.

The driving roll which is herein shown, comprises a cylindrical member 1and a flarmg member 2, both mounted on a suitable supporting shaft 3. Inthe form shown in 1g. 1, the cop cone is represented as a paper cone andit has a gradual taper as shown at 4, extending a distance from itslarger end, said gradual taper terminating in a steeper taper shown at5, at 'its nose or smaller end.

In the form shown in Fig. 2, the cop cone is of wood or other suitablematerial. In both of the forms of cop cones illustrated in Figs. 1 and2, the steeper taper 5 of the cone is straight.

In the form shown in Fig. 4, the steeper taper of the cone is shown assli htly convex, while in the form shown in B ig. 5, the steeper taperof the cone is shown as slightly concave.

It will be understood that in the winding machine, the gradual taper 4of the cone is opposite the cylindrical member 1 of the driving roll andthe steeper taper 5 of the cone is opposite the flaring member 2 of thedriving roll. This arrangement of the driving roll and double taper coneermit's the winding of the cop so as to produce the advantageous resultshereinbefore set forth and eliminates some of the disadvantages whichhave heretofore obtained where a single taper cone has been employed,especially with the driving roll having the flaring member hereinillustrated.

It is evident that various changes may be resorted to in the form,construction and arrangement of the several parts without departing fromthe spirit and scope of my invention; hence I do not intend to limitmyself to the particular embodiments herein shown and described, but,

What I claim is 1. A rigid cop cone, its winding surface having agradual taper terminating at its smaller end in a steeper taper in thesame direction.

together with the driving roll 2. A rigid cop cone, its winding surfacehaving a gradual taper terminating at its smaller end in a straightsteeper taper in the same direction.

3. In a winding machine, the combination with a driving r011 dividedinto a cylindrical member and a flaring member, of a rigid cop cone, itswinding surface having a gradual taper opposite the cylindrical memberterminating at its smaller end in a steeper taper in the same directionopposite the flaring member.

